Table 1: Laboratory-confirmed influenza reported to WHO/FluNet among tropical Asian countries that maintained influenza surveillance during 2020: Epidemiologic weeks 18-53, 2015-2020
Country
Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2020 Influenza virus circulation, 2015-2019 Influenza virus circulation, 2015-2019
Most recent week of report Most recent week of influenza detection Number of weeks with specimens processed
(% of 36 weeks) Specimens tested during epidemiologic weeks 18-53 Influenza detected during weeks 18-53* Epidemiologic weeks during weeks 18-53, with influenza virus detections Influenza surveillance specimens tested and number positive in weeks 18-30 Influenza surveillance specimens tested and number positive in weeks 31-53 Influenza surveillance specimens tested and number positive in weeks 18-30 Influenza surveillance specimens tested and number positive in weeks 31-53
Bangladesh
52
45
35 (97%)
3,552
208 A(H3)
25, 32-45
1/745 (0.1%) 207/2,807 (12%)
3,420/10,591 (32%)
1,151/13,954 (8%)
Cambodia
52
46
35 (97%)
737
108 A(H3)
27,29, 31-46
3/285 (1%) 105/452 (23%) 463/1,663 (28%) 819/2,957 (28%)
India
51
51
30 (83%)
2,176
13 A(H3)
41-45, 47, 50-51
0/574 (0%) 13/1,602 (1%) 1,825/12,889 (14%) 5,013/33,936 (15%)
Indonesia
41
36
22 (61%)
131
3 A(H3)
20, 34, 36
1/66 (2%) 2/65 (3%) 769/3,784 (20%)
1,205/5,958 (20%)
Lao PDR
52
51
34 (94%)
2,205
116 A(H3) 1 A(H1)
32, 36, 38-51
0/390 (0%) 117/1,815 (6%) 447/6,459 (7%) 2,103/10,405 (20%)
Malaysia
50
34
31 (86%)
1,607
1 A(H1)
34
0/563 (0%) 1/1,044 (0.1%) 653/5,790 (11%)
1,042/8,239 (13%)
Maldives
53
n/a
20 (56%)
138
0
n/a
0/47 (0%) 0/91 (0%) 419/1,334 (31%) 191/1,332 (14%)
New Caledonia
53
n/a
36 (100%)
462
0
n/a
0/236 (0%) 0/226 (0%) 489/2,098 (23%) 514/2,495 (21%)
Singapore
53
n/a
36 (100%)
1,497
0
n/a
0/398 (0%) 0/1,099 (0%)
1,951/4,217 (46%)
1,536/4,645 (33%)
Thailand
43
43
26 (72%)
741
3 A(H1) 1 B
36,37,43
0/252 (0%) 4/489 (1%)
1,033/3,939 (26%)
2,628/8,231 (32%)
Timor-Leste
47
46
21 (58%)
2,772
14 A(H3) 12 A(H1) 1 B
30, 32-33, 38-42, 44, 46
8/49 (16%) 19/2,723 (1%) 99/293 (34%) 4/347 (1%)
Viet Nam
50
50
33 (92%)
1,389
111 A(H3
40-50
0/364 (0%) 111/1,025 (11%) 848/3,349 (25%)
1,276/6,627 (19%)
Total
17,407
573 A(H3) 17 A(H1) 2 B
13/3,969 (0.3%)
579/13,438 (4%)
12,516/56,406 (22%)
17,482/99,126 (18%)
* The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021). * The years 2015 and 2020 included 53 epidemic weeks. The years 2016-2019 included 52 epidemic weeks.
Note: Brunei (not in WHO FluNet), Myanmar (11 weeks), Papua New Guinea (0 weeks), Philippines (0 weeks), and Sri Lanka (3 weeks) did not report over 50% of weeks with influenza specimens processed to meet inclusion criteria (data last accessed on January 15, 2021).